Essential Oils for Oral Care

Essential Oils for Oral Care – Uses, Evidence and Safety

Essential oils for oral care are found in some professionally formulated toothpastes, mouthrinses and other dental products. Peppermint, spearmint, lemon, myrrh, clove and cinnamon are among the oils traditionally associated with fresh breath and oral hygiene.

Laboratory research suggests that certain essential-oil components have antimicrobial activity. Clinical research also indicates that properly formulated essential-oil mouthrinses may help reduce plaque and gingivitis when used alongside regular brushing and interdental cleaning.*

However, these findings do not mean that concentrated essential oils should be placed directly in the mouth or mixed into homemade mouthwash. Essential oils are highly concentrated, do not dissolve evenly in water and can irritate or burn sensitive oral tissue.

This guide explains how several essential oils are used in commercial oral-care products and what you should know before incorporating them into your routine.

Do Essential Oils Support Oral Health?

Some professionally formulated essential-oil mouthrinses have been shown to help control plaque and gingivitis when used in addition to brushing and flossing.* Their effectiveness depends on the complete formula, concentration and method of delivery not simply the presence of essential oils.

Essential-oil products should never replace:

• Brushing twice daily with fluoride toothpaste
• Daily flossing or interdental cleaning
• Regular dental examinations and professional cleanings
• Treatment recommended by a dentist

Fluoride remains a proven ingredient for helping prevent tooth decay. A product marketed as “fluoride-free” should not be assumed to provide equivalent cavity protection.

Six Essential Oils Commonly Associated with Oral Care

Peppermint Essential Oil for Oral Care

Peppermint essential oil contains menthol, which produces its familiar cooling sensation and fresh aroma. Peppermint flavoring is widely used in toothpaste, mouthrinse, dental floss and breath-freshening products.

Laboratory findings suggest peppermint essential oil has antimicrobial properties, but this does not establish that undiluted peppermint oil can prevent or treat dental disease. Concentrated peppermint oil may cause burning, irritation, nausea or other adverse effects if misused or swallowed.

Spearmint Essential Oil for Oral Care

Spearmint essential oil has a softer, sweeter aroma than peppermint. It is commonly used as a flavoring ingredient in toothpaste, chewing gum and breath-freshening products.

Like peppermint, spearmint may contribute a clean, refreshing sensation when included at an appropriate concentration in a professionally formulated oral-care product.* It should not be applied directly to the teeth, gums or other tissues inside the mouth.

Lemon Essential Oil for Oral Care

Lemon essential oil contains a high percentage of limonene and has a bright citrus aroma. It is sometimes included as a flavoring component in dental and breath-freshening products.

Although lemon is frequently promoted online as a natural tooth whitener, concentrated lemon essential oil should not be used as a DIY whitening treatment. It has not been established as a safe substitute for professionally formulated whitening products and may irritate sensitive oral tissues.

If you are concerned about staining, enamel erosion or tooth sensitivity, ask your dentist about an appropriate whitening method.

Myrrh Essential Oil for Oral Care

Myrrh essential oil has a warm, resinous aroma and a long history of traditional use in oral-hygiene preparations.

Preliminary laboratory research has explored the antimicrobial and anti-inflammatory properties of myrrh. However, evidence is insufficient to conclude that myrrh essential oil can strengthen gums or treat gum disease, mouth ulcers or other dental conditions.

Use only an oral-care product specifically formulated with myrrh and follow its label directions. Avoid myrrh during pregnancy unless a qualified healthcare professional approves its use.

Clove Bud Essential Oil for Oral Care

Clove bud essential oil contains eugenol, a compound that has a long history of use in dentistry. Eugenol-based materials may be used by dental professionals in controlled formulations.

This does not make undiluted clove essential oil a safe home treatment for tooth pain. Concentrated clove oil can irritate or damage oral tissue, and repeated exposure may cause sensitivity or an allergic reaction.

A toothache can signal decay, infection, a cracked tooth or another condition requiring professional care. Contact a dentist promptly rather than attempting to numb persistent pain with essential oil.

Cinnamon Bark Essential Oil for Oral Care

Cinnamon bark essential oil has a warm, spicy aroma and is sometimes included in carefully formulated oral-care products. Laboratory studies have identified antimicrobial activity, but that does not establish cinnamon essential oil as a treatment for gingivitis, oral thrush or dental infections.

Cinnamon bark is considered a “hot” oil and can cause significant irritation or contact reactions. Do not apply it directly to the gums, teeth, tongue or other tissues inside the mouth.

People who are pregnant, breastfeeding, taking anticoagulant or diabetes medication, or living with a bleeding disorder should consult a healthcare professional before using concentrated cinnamon products.

How to Use Essential-Oil Oral-Care Products Safely

For safer use:

• Choose a finished oral-care product specifically formulated for use in the mouth.
• Follow the product’s directions and age restrictions.
• Never apply undiluted essential oils to the teeth, gums or tongue.
• Do not add essential oils directly to a glass of water. Oil and water do not mix, so concentrated droplets can contact and irritate oral tissue.
• Do not swallow essential oils or mouthrinse.
• Keep essential oils away from children and pets.
• Stop using a product if burning, swelling, rash, sores or persistent irritation develops.
• Ask a dentist before using essential-oil products if you have oral lesions, gum disease, dry mouth, sensitive teeth or recent dental work.
• Consult a qualified healthcare professional during pregnancy or breastfeeding and when taking medication.

If an essential oil is accidentally swallowed, contact Poison Control in the United States at 1-800-222-1222 or use its online assistance service.

Can Essential Oils Be Added to Oil Pulling Products?

Essential oils should not simply be added by the drop to coconut, sesame or another carrier oil for swishing.

The tissues inside the mouth are sensitive, and dilution guidelines intended for skin application do not automatically establish safety for oral exposure. There is also a risk of accidentally swallowing or aspirating the mixture.

If you practice oil pulling, use plain food-grade oil unless your dentist recommends a finished product specifically formulated for this purpose. Oil pulling should not replace brushing, flossing or professional dental care.

Frequently Asked Questions About Essential Oils for Oral Care

Can essential oils remove plaque?

Professionally formulated mouthrinses containing specific essential-oil combinations may help reduce plaque when added to daily brushing and interdental cleaning.* Concentrated essential oils used alone have not been shown to remove plaque safely.

Can essential oils treat gingivitis or gum disease?

Essential oils should not be promoted as a treatment or cure for gum disease. Some formulated antimicrobial mouthrinses can help control plaque and gingivitis, but periodontal disease requires evaluation and treatment by a dental professional.

Can I add peppermint essential oil to water for mouthwash?

No. Essential oils do not dissolve in water. Peppermint oil may remain in concentrated droplets that can irritate the mouth and gums. Choose a properly formulated oral rinse instead.

Can I add essential oil to my toothpaste?

Adding concentrated essential oil may alter the toothpaste formula and expose oral tissue to an inappropriate concentration. It is safer to select a finished toothpaste that already contains the flavor or ingredient you want.

Can clove essential oil stop a toothache?

Clove-derived eugenol has a history of professional dental use, but concentrated clove essential oil is not a safe substitute for dental treatment. Tooth pain may indicate infection, decay, injury or another condition requiring prompt attention.

Can lemon essential oil whiten teeth?

There is insufficient evidence that applying lemon essential oil is a safe and effective method of whitening teeth. Ask your dentist about whitening options that have been evaluated for oral use.

Are essential oils for oral care safe for children?

Do not give children homemade essential-oil mouthrinses or apply concentrated oils inside their mouths. Children may swallow the product, and smaller quantities can cause serious effects. Ask a pediatric dentist which products are appropriate for the child’s age.

When should I see a dentist?

Contact a dentist for persistent tooth pain, bleeding or swollen gums, loose teeth, facial swelling, mouth sores lasting longer than two weeks, fever, difficulty swallowing or sensitivity that does not improve. Facial swelling accompanied by trouble breathing or swallowing requires urgent medical attention.

Final Thoughts on Essential Oils for Oral Care

Essential oils for oral care may contribute flavor, freshness and antimicrobial activity when used at controlled concentrations in properly formulated dental products.* However, concentrated essential oils are not interchangeable with tested mouthrinses, toothpastes or professional dental treatments.

For everyday oral health, focus first on brushing, interdental cleaning, regular dental visits and products selected for your particular needs. Treat essential-oil oral-care products as optional additions, not replacements for proven preventive care.

Disclaimer

*These statements have not been evaluated by the FDA. This information is for educational purposes only and is not intended to diagnose, treat, cure or prevent any disease. Essential oils are highly concentrated and should not be swallowed or applied undiluted inside the mouth. Consult a dentist or qualified healthcare professional regarding oral-health concerns.

References

• American Dental Association: Mouthrinse (Mouthwash)
• Poison Control: Essential Oils—Poisonous When Misused
• National Center for Complementary and Integrative Health: Peppermint Oil Safety
• Systematic Review: Long-Term Effects of Essential-Oil Mouthrinse